A flying aircraft is a source of disturbance in still air . 在靜止的空氣里,飛行器是一個(gè)擾動(dòng)源。
The unsteady air is the most dangerous source of disturbance for astronomical photography . 不穩(wěn)定的空氣便是天文照相最危險(xiǎn)的干擾源。
Its low amplitude makes it less important as a source of disturbance in magnetic prospecting than the solar component . 作為磁法勘探中的干擾源,它的幅度很小,所以遠(yuǎn)不及太陽(yáng)日變分量那么重要。
Rivers , lakes , large warehouses and railway are some of the main sources of disturbance affecting the tilt field due to mechanical loading and unloading on the surface 河流、湖泊、倉(cāng)庫(kù)(貨場(chǎng)、列車(chē)編組站)和鐵路,是幾種主要的影響鉆孔傾斜觀測(cè)的地面載荷變化干擾源。